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nvme: add rotational support

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Rotational devices, such as hard-drives, can be detected using
the rotational bit in the namespace independent identify namespace
data structure. Make the bit visible to the block layer through the
rotational queue setting.

Signed-off-by: Wang Yugui <wangyugui@e16-tech.com>
Reviewed-by: Matias Bjørling <matias.bjorling@wdc.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Wang Yugui 2024-10-10 14:39:50 +02:00 committed by Keith Busch
parent ee9f36db1f
commit 1d81143885
2 changed files with 7 additions and 0 deletions
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6
drivers/nvme/host/core.c
View File

@ -42,6 +42,7 @@ struct nvme_ns_info {
bool is_readonly;
bool is_ready;
bool is_removed;
bool is_rotational;
};
unsigned int admin_timeout = 60;
@ -1615,6 +1616,7 @@ static int nvme_ns_info_from_id_cs_indep(struct nvme_ctrl *ctrl,
info->is_shared = id->nmic & NVME_NS_NMIC_SHARED;
info->is_readonly = id->nsattr & NVME_NS_ATTR_RO;
info->is_ready = id->nstat & NVME_NSTAT_NRDY;
info->is_rotational = id->nsfeat & NVME_NS_ROTATIONAL;
}
kfree(id);
return ret;
@ -2162,6 +2164,9 @@ static int nvme_update_ns_info_block(struct nvme_ns *ns,
else
lim.features &= ~(BLK_FEAT_WRITE_CACHE | BLK_FEAT_FUA);
if (info->is_rotational)
lim.features |= BLK_FEAT_ROTATIONAL;
/*
* Register a metadata profile for PI, or the plain non-integrity NVMe
* metadata masquerading as Type 0 if supported, otherwise reject block
@ -3608,6 +3613,7 @@ static struct nvme_ns_head *nvme_alloc_ns_head(struct nvme_ctrl *ctrl,
head->ns_id = info->nsid;
head->ids = info->ids;
head->shared = info->is_shared;
head->rotational = info->is_rotational;
ratelimit_state_init(&head->rs_nuse, 5 * HZ, 1);
ratelimit_set_flags(&head->rs_nuse, RATELIMIT_MSG_ON_RELEASE);
kref_init(&head->ref);

1
drivers/nvme/host/nvme.h
View File

@ -474,6 +474,7 @@ struct nvme_ns_head {
struct list_head entry;
struct kref ref;
bool shared;
bool rotational;
bool passthru_err_log_enabled;
struct nvme_effects_log *effects;
u64 nuse;